D. Putra, E. et al. 2021. Component Analysis of White Ginger (Zingiber officinale Roscoe) Extract and Red Ginger (Zingiber officinale Rubra) Extract: doi.org/10.26538/tjnpr/v5i9.17. Tropical Journal of Natural Product Research (TJNPR). 5, 9 (Sep. 2021), 1634–1637.